[TowerTalk] Engineering advice on above ground foundation

[jimlux]

john at kk9a.com wrote:
> Instead of relying on the undisturbed earth to hold your tower in position, 
> you are basically relying on a 60,000 pound weight with a 10 foot square 
> footing to hold up a 90 foot tower. 

Worse... if it's in water, the 60,000 pounds only weighs about 25,000 
pounds.   It's the difference between standing on a log laying on the 
ground and a log floating in a lake (well.. not that bad, but you get 
the idea)

  Still has inertia, though, for seismic resistance.  And bulk 
hydrodynamic drag.